checkFactors.js

// Write a function that returns true if all integers in an array are factors of a number, and false otherwise.

// Examples:
// checkFactors([2, 3, 4], 12) ➞ true
// Since 2, 3, and 4 are all factors of 12.
// checkFactors([1, 2, 3, 8], 12) ➞ false
// 8 is not a factor of 12.
// checkFactors([1, 2, 50], 100) ➞ true
// checkFactors([3, 6], 9) ➞ false

function checkFactors(factors, num) {
  let main = (n) => num % n === 0;
  return factors.every(main);
}
console.log(checkFactors([2, 3, 4], 12));